/*------------------ item.less -----------------------*/
.item{
    position: relative;
    .top{
        position: absolute;
        top: 0;
        left: 0;
    }
    .bottom{
        position: absolute;
        bottom: 0;
        left: 0;
    }
    .center{
        position: absolute;
        top:50%;
    }
}
.item-overlay{
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    &.active,
    .item:hover & {
        display: block;
    }
}
